Jan Kazior
Czasopismo Techniczne, Mechanika Zeszyt 6-M (11) 2012, 2012, s. 115 - 125
https://doi.org/10.4467/2353737XCT.14.102.1879The combinations of good biocompatibility of hydroxyapatite and good mechanical properties of 316L steel should lead to obtain better biomaterial. 316L-hydroxyapatite composites were produced by the PM technology. Microstructure and properties of these materials were affected by chemical composition of powders mixture and sintering temperature. Sintering temperature of 1240°C and hydroxyapatite addition of 3 wt. % provide to obtain the best density and hardness sintered 316L-hydroxyapatite compositions.
Jan Kazior
Czasopismo Techniczne, Mechanika Zeszyt 8-M (22) 2012, 2012, s. 149 - 160
https://doi.org/10.4467/2353737XCT.14.047.1824In the present study copper modificated 410L stainless steel was investigated. This steel was fabricated based on powders, by the pressing and sintering. By varying amount of copper and sintering temperature the properties of the 410L stainless steel can be improved. At sintering temperature of 1240°C and at high copper levels the microstructure of steel is predominately martensitic. The sintered density of steel increases as the copper level increases, with a drop-off in density at 4 w/o Cu. It has been shown that stainless steels with higher copper levels have higher hardness and better density in comparison to steels sintered in 1260°C. In general, higher sintering temperature and low copper levels favor the formation of ferrite. An examination of the microstructures of these steels reveals that they are a mixture of ferrite and martensite.